@charset "utf-8";
/*******************banner-****************/
.clear:after{
	content: '';
	display: block;
	height: 0;
	clear: both;
}
.banner_wrap{
	width: 100%;
	min-width: 1200px;
	padding-top: 120px;
	position: relative;
	overflow: hidden;
	transition: all 1s;
	background-image: linear-gradient(top,#272727,#555555);
	background-image: -webkit-linear-gradient(top,#272727,#555555);
}
.banner{
	width: 1200px;
	margin: 0 auto;
	height: 630px;
	position: relative;
}
.banner_box{
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	margin: 0 auto;
	display: none;
}
.banner_show{
	display: block;
}
.banner_title img{
	display: block;
	height: 36px;
	margin: 0 auto;
}
.banner_title p{
	text-align: center;
	margin-top: 8px;
	font-size: 24px;
	color: #fff;
	font-weight: 100px;
	line-height: 33px;
}
.banner_img{
	padding-top: 83px;
}
.banner_img img{
	display: block;
	height: 470px;
	margin: 0 auto;
}
.banner_left,.banner_right{
	position: absolute;
	top: 0;
	width: 180px;
	height: 100%;
	opacity: 0;
	transition: opacity .5s;
}
.banner_left:hover,.banner_right:hover{
	opacity: 1;
}
.banner_right{
	right: 0;
}
.banner_left_btn,.banner_right_btn{
	position: absolute;
	top: 45%;
	width: 70px;
	height: 70px;
	border-radius: 50%;
	color: #fff;
	cursor: pointer;
	padding: 30px;
	background-color: rgba(194,200,204,.5);
}
.banner_left_btn{
	left: -65px;
	text-align: right;
}
.banner_right_btn{
	right: -65px;
}
.banner_left_btn i,.banner_right_btn i{
	font-size: 68px;
}
.banner_list{
	width: 200px;
	height: 200px;
	position: absolute;
	left: 70px;
	bottom: 10px;
	padding-left: 40px;
	overflow: hidden;
	/*border:1px solid #000;*/
	/*overflow: hidden;*/
}
.banner_list span{
	position: absolute;
	top: 50%;
	left: 0;
	margin-top: -10px;
	height: 20px;
	border: 1px solid #fff;
}
.banner_list ul{
	position: relative;
	top: -32px;
}
.banner_list ul li{
	font-size: 14px;
	line-height: 20px;
	padding: 6px 0;
	color: #fff;
	position: absolute;
	cursor: pointer;
	transition: opacity .5s;
}

/***********************img****************************/
.img_box_wrap{
	width: 100%;
	padding: 40px 0 64px;
	background-color: #f2f2f2;
}
.img_box{
	width: 1200px;
	margin: 0 auto;
}
.img_box img{
	display: block;
	
}
.img_top_left{
	width: 590px;
	height: 660px;
	float: left;
	position: relative;
}
.img_top_left>div{
	width: 100%;
	height: 100%;
	cursor: pointer;
	position: absolute;
	top: 0;
	left: 0;
	color: #fff;
	transition: all .5s;
	transform-origin: 50% -100px;
}
.img_top_left>div h3{
	font-size: 24px;
	line-height: 32px;
	position: absolute;
	left: 36px;
	bottom: 64px;
}
.img_top_left i{
	position: absolute;
	color: #fff;
	font-size: 50px;
	top: 50%;
	z-index: 999;
	cursor: pointer; 
	transition: color .5s;
}
.img_top_left i:hover{
	color: #999;
}
.img_top_left .fa-angle-left{
	left: 20px;
}
.img_top_left .fa-angle-right{
	right: 20px;
}
.img_top_left>div p{
	font-size: 16px;
	line-height: 24px;
	position: absolute;
	left: 36px;
	bottom: 40px;
}
.img_top_right{
	float: right;
	width: 590px;
	height: 660px;
	display: flex;
	display: -webkit-flex;
	flex-wrap: wrap;
}
.img_top_right>div{
	width: 100%;
	height: 320px;
	overflow: hidden;
	position: relative;
	cursor: pointer;
	transition: all .5s;
}
.img_top_right>div:nth-child(2){
	align-self: flex-end;
}
.img_top_right>div>img{
	width: 100%;
	height: 100%;
	transition: all .5s;
}
.img_top_right>div:hover,.img_bom>div:hover{
	box-shadow: 0 0 5px #999;
}
.img_top_right>div:hover>img,.img_bom>div:hover img{
	transform:scale(1.05);
}
.img_top_txt{
	position: absolute;
	top: 130px;
	left: 320px;
	color: #fff;
	line-height: 32px;
}
.img_top_txt:nth-child(2) img{
	height: 50px;
}
.img_top_right>div:nth-child(2) .img_top_txt{
	left: 40px;
	color: #303233;
}
.img_bom{
	width: 100%;
	padding-top: 40px;
	display: flex;
	display: -webkit-flex;
	justify-content: space-between;
}
.img_bom>div{
	width: 590px;
	height: 290px;
	position: relative;
	cursor: pointer;
	overflow: hidden;
	transition: all .5s;
}
.img_bom>div>img{
	width: 100%;
	height: 100%;
	transition: all .5s;
}
.img_bom>div:hover .img_bom_txt{
	top: 200px;
}
.img_bom_txt{
	position: absolute;
	top: 210px;
	left: 40px;
	transition: all .5s;
}
.img_bom_txt h3{
	font-size: 24px;
	line-height: 32px;
	font-family: 500;
}
.img_bom_txt p{
	font-size: 16px;
	line-height: 24px;
	font-weight: 100;
}
.service_list{
	width:1200px;
	margin: 0 auto;
	height: 166px;
	margin-top: 40px;
	display: flex;
	display: -webkit-flex;
	justify-content: space-between;
}
.service_list div{
	width: 33.3%;
	height: 100%;
	padding-top: 54px;
	box-sizing: border-box;
	position: relative;
	background-color: #fff;
	cursor: pointer;
	transition: all .5s;
}
.service_list div:before{
	display: block;
	content: '';
	position: absolute;
	width: 3px;
	height: 46px;
	top: 50%;
	margin-top: -23px;
	transition: all .5s;
	background-color: #c2c8cc;
}
.service_list div:hover:before{
	background-color: #303233;
}
.service_list div h1{
	font-size: 24px;
	line-height: 32px;
	font-weight: 500px;
	padding-left: 40px;
}
.service_list div p{
	font-size: 16px;
	line-height: 24px;
	font-weight: 300px;
	padding-left: 40px;
}